JPS5942458B2 - Teikouno Ondo Hosei Cairo - Google Patents
Teikouno Ondo Hosei CairoInfo
- Publication number
- JPS5942458B2 JPS5942458B2 JP13000075A JP13000075A JPS5942458B2 JP S5942458 B2 JPS5942458 B2 JP S5942458B2 JP 13000075 A JP13000075 A JP 13000075A JP 13000075 A JP13000075 A JP 13000075A JP S5942458 B2 JPS5942458 B2 JP S5942458B2
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- circuit
- integrated circuit
- voltage
- teikouno
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010586 diagram Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
Landscapes
- Semiconductor Integrated Circuits (AREA)
Description
【発明の詳細な説明】 本発明は抵抗の温度補正回路に関するものである。[Detailed description of the invention] The present invention relates to a resistance temperature correction circuit.
例えばＣＲ式のタイマでは第１図の如く電源Ｅの両端に
制御素子ＳＣＲと直列にした出力リレ 。−Ｒｙを接続
し、その制御素子ＳＣＲのゲートに、分圧抵抗Ｒ、、Ｒ
２、限時抵抗ＲＴ、限時コンデンサＣＴによつて一定時
間後にオンするスイッチ素子ＰＵＴを接続し、そのスイ
ッチ素子ＰＵＴのカソードに接続した抵抗Ｒ３の両端電
圧で制御素子ＳＣＲをオンさせるようにしてある。この
場合に、スイッチ素子ＰＵＴのオン電圧を設定する抵抗
Ｒ１、Ｒ２はタイマ自体の電圧定格とが限時コンデンサ
ＣＴの特性のばらつき等によつて調整を要するためにい
ずれか一方の抵抗を回路外部に引き出して抵抗値が変え
られるようにするものであるが、このようなタイマ回路
が集積回路によつて構成される場合には、第２図の如く
、集積回路内のベース層における抵抗が温度変化に対し
て正特性であるのに対して、回路外部に引き出して使用
するような抵抗は、カーボン抵抗やソリッド抵抗で負特
性を有している。このためにスイッチ素子ＰＵＴの設定
電圧が温度変化に対して安定しないことゝなる。本発明
はかゝる場合に使用して安定してタイマの如き電気機器
を作動させることの可能な抵抗の温度補正回路を提供す
る。For example, in a CR type timer, as shown in Figure 1, an output relay is connected in series with a control element SCR at both ends of a power supply E. -Ry is connected to the gate of the control element SCR, and the voltage dividing resistors R, , R
2. A switch element PUT that turns on after a certain period of time is connected by a time limit resistor RT and a time limit capacitor CT, and the control element SCR is turned on by the voltage across a resistor R3 connected to the cathode of the switch element PUT. In this case, because the resistors R1 and R2 that set the on-voltage of the switch element PUT require adjustment due to the voltage rating of the timer itself and variations in the characteristics of the time-limiting capacitor CT, one of the resistors is connected outside the circuit. However, when such a timer circuit is constructed from an integrated circuit, as shown in Figure 2, the resistance value in the base layer of the integrated circuit changes due to temperature changes. On the other hand, resistors used outside the circuit, such as carbon resistors and solid resistors, have negative characteristics. For this reason, the set voltage of the switch element PUT is not stable against temperature changes. The present invention provides a resistance temperature correction circuit that can be used in such a case to stably operate an electrical device such as a timer.
以下前記従来例を示す第１図乃至第２図との同一個所に
同一符号を使用した第３図乃至第５図を参照して本発明
抵抗の温度補正回路の実施例を説明すると、集積回路内
の抵抗Ｒ１と集積回路外に引き出してカーボン抵抗、ソ
リッド抵抗等負特性を有する抵抗Ｒ２を直列に接続して
、その直列抵抗の両端に電圧を加えて分圧する電気回路
において、集積回路内の正特性を示す抵抗Ｒ１にダイオ
ードＤ、を接続するものである。An embodiment of the temperature correction circuit of the resistor of the present invention will be described below with reference to FIGS. 3 to 5, in which the same parts as in FIGS. 1 to 2 showing the conventional example are given the same reference numerals. In an electric circuit, a resistor R1 inside the integrated circuit is connected in series with a resistor R2 which has a negative characteristic such as a carbon resistor or a solid resistor, and a voltage is applied to both ends of the series resistor to divide the voltage. A diode D is connected to a resistor R1 exhibiting positive characteristics.
この場合に第３図の如くダイオードＤ１を直列に挿入し
ても、第４図の如く並列接続したダイオードＤ、、Ｄ２
を直列に挿入してもよい。このようなダイオードＤ、の
特性は第５図に示す如く、温度の上昇に対して順方向電
圧が低くなる負特性を有するものであるから、集積回路
内において、抵抗Ｒ、とダイオードＤ１とが接続される
ことによつて、外部接続の負特性の抵抗Ｒ２と近似の特
性が得られ温度変化に安定した直列抵抗の回路となるも
のである。In this case, even if the diode D1 is inserted in series as shown in Fig. 3, the diodes D, , D2 connected in parallel as shown in Fig. 4
may be inserted in series. As shown in FIG. 5, the diode D has a negative characteristic in which the forward voltage decreases as the temperature increases. Therefore, in the integrated circuit, the resistor R and the diode D1 are By being connected, characteristics similar to those of the externally connected resistor R2 with negative characteristics can be obtained, resulting in a series resistance circuit that is stable against temperature changes.
上述するように本発明における抵抗の温度補正回路によ
れば、集積回路を使用した回路構成をもつ電気機器に適
した温度補正がダイオードを設けるだけで容易に行われ
るものであり、しかも価格も安価であり、従来温度補正
のために使用して来たサーミスタの正負特性を利用した
ものに代替してその効果の大きいものである。As described above, according to the resistance temperature correction circuit of the present invention, temperature correction suitable for electrical equipment having a circuit configuration using an integrated circuit can be easily performed by simply providing a diode, and it is also inexpensive. This is a highly effective alternative to the thermistor, which has been conventionally used for temperature correction, and utilizes the positive/negative characteristics.
しかも、集積回路内の抵抗にダイオードを接続するだけ
であるから、接続箇所が１箇所だけであり、容易に構成
でき、温度変化に対する影響を少なくできるものである
。Moreover, since the diode is simply connected to the resistor in the integrated circuit, there is only one connection point, which makes it easy to configure and reduces the influence of temperature changes.
第１図乃至第２図は本発明の従来例を示し、第１図は回
路図、第２図は温度特性図である。
第３図乃至第５図は本発明抵抗の温度補正回路の実施例
を示し、第３図は一実施例の回路図、第４図は他の実施
例の回路図、第５図はダイオードの温度特性図である。
Ｒ「・・・・・集積回路内の抵抗、Ｒ２・・・・・・集
積回路外の抵抗、Ｄ，，Ｄ２・・・・・・ダイオード。1 and 2 show a conventional example of the present invention, with FIG. 1 being a circuit diagram and FIG. 2 being a temperature characteristic diagram. 3 to 5 show embodiments of the temperature correction circuit of the resistor of the present invention, FIG. 3 is a circuit diagram of one embodiment, FIG. 4 is a circuit diagram of another embodiment, and FIG. 5 is a circuit diagram of a diode. It is a temperature characteristic diagram.
R "... Resistance inside the integrated circuit, R2... Resistance outside the integrated circuit, D,, D2... Diode.
Claims (1)
の抵抗とを直列に接続して、その直列抵抗の両端に電圧
を加えて分圧する電気回路において、集積回路内の抵抗
にダイオードを接続して成ることを特徴とする抵抗の温
度補正回路。1. In an electric circuit that connects a resistor with positive temperature characteristics inside the integrated circuit in series with a resistor outside the integrated circuit and divides the voltage by applying a voltage across the series resistor, a diode is connected to the resistor inside the integrated circuit. A resistor temperature compensation circuit characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13000075A JPS5942458B2 (en) | 1975-10-28 | 1975-10-28 | Teikouno Ondo Hosei Cairo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13000075A JPS5942458B2 (en) | 1975-10-28 | 1975-10-28 | Teikouno Ondo Hosei Cairo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5253681A JPS5253681A (en) | 1977-04-30 |
| JPS5942458B2 true JPS5942458B2 (en) | 1984-10-15 |
Family
ID=15023660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13000075A Expired JPS5942458B2 (en) | 1975-10-28 | 1975-10-28 | Teikouno Ondo Hosei Cairo |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5942458B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5890756A (en) * | 1981-11-25 | 1983-05-30 | Mitsubishi Electric Corp | Monolithic reference current source |
-
1975
- 1975-10-28 JP JP13000075A patent/JPS5942458B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5253681A (en) | 1977-04-30 |
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